Use of Nitroglycerin Patch in Treating Brown Recluse Spider Bites

I have received a bite from a Brown Recluse with the usual symptoms of a dime sized area of necrotic tussue and the reddened area the size of a football. I have read of a treatment on the net using a Nitroglycerin Patch directly over the bite area to promote blood flow. I would very much like to hear what comments anyone would have to such treatment. The idea of lancing the wound to remove necrotic tissue is not attractive to me.